PROFESSIONAL PUBLICATIONS...SUN-CLIMATE RELATIONSHIPS

The temperature reconstruction indicates a 125-year
periodicity that may be linked to solar activity, as reflected in
radiocarbon and auroral records. Both the Little Ice Age and the
Medieval Warm Epoch are clearly associated with the periodicity.
Phase changes occur at the onset and termination of the most
recent radiocarbon triplet, and may indicate chaotic solar
behavior.

The observed similarity between the envelope of the 11-year
solar activity cycle and a time series of globally averaged sea
surface temperatures over the past 130 years was explored using a
1-D model of the thermal response of the global ocean to
variations in surface heating. Deduces that total irradiance at
the time of the Maunder Minimum was about 1% less than the
present value.